21/3=u+3/4

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Solution for 21/3=u+3/4 equation: 


u in (-oo:+oo)

21/3 = u+3/4 // - u+3/4

21/3-u-(3/4) = 0

21/3-u-3/4 = 0

25/4-u = 0 // - 25/4

-u = -25/4 // * -1

u = 25/4

u = 25/4

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